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Vulnerability details: VCID-w6x7-ya8u-aaaj
Vulnerability ID VCID-w6x7-ya8u-aaaj
Aliases CVE-2016-5421
Summary Use-after-free vulnerability in libcurl before 7.50.1 allows attackers to control which connection is used or possibly have unspecified other impact via unknown vectors.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-416 Use After Free
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-5421.html
cvssv3.1 9.8 https://access.redhat.com/errata/RHSA-2018:3558
generic_textual CRITICAL https://access.redhat.com/errata/RHSA-2018:3558
cvssv3 8.1 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-5421.json
epss 0.00841 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.00841 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.00841 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.00841 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.00841 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.00841 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.00841 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.00841 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.00841 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.00841 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.00841 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.00943 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.00943 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.00943 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.00943 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.01092 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.01092 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.0133 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.0133 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.0133 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.0133 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.0133 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.0133 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.0133 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.0133 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.0133 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.0133 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.0133 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.0133 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.02487 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.05495 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.05495 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.05495 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.07239 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.10899 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.10899 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
epss 0.10899 https://api.first.org/data/v1/epss?cve=CVE-2016-5421
rhbs medium https://bugzilla.redhat.com/show_bug.cgi?id=1362199
generic_textual Medium https://curl.haxx.se/docs/adv_20160803C.html
cvssv3.1 High https://curl.se/docs/CVE-2016-5421.html
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5419
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5420
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5421
cvssv2 6.8 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 6.8 https://nvd.nist.gov/vuln/detail/CVE-2016-5421
cvssv3 8.1 https://nvd.nist.gov/vuln/detail/CVE-2016-5421
cvssv3.1 8.1 https://nvd.nist.gov/vuln/detail/CVE-2016-5421
generic_textual Medium https://source.android.com/security/bulletin/2016-12-01.html
generic_textual Medium https://ubuntu.com/security/notices/USN-3048-1
cvssv3.1 6.1 https://www.tenable.com/security/tns-2016-18
generic_textual HIGH https://www.tenable.com/security/tns-2016-18
cvssv3.1 5.9 http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
generic_textual MODERATE http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
Reference id Reference type URL
http://lists.opensuse.org/opensuse-updates/2016-09/msg00011.html
http://lists.opensuse.org/opensuse-updates/2016-09/msg00094.html
http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-5421.html
https://access.redhat.com/errata/RHSA-2018:3558
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-5421.json
https://api.first.org/data/v1/epss?cve=CVE-2016-5421
https://curl.haxx.se/docs/adv_20160803C.html
https://curl.se/docs/CVE-2016-5421.html
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5419
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5420
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5421
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GLPXQQKURBQFM4XM6645VRPTOE2AWG33/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K3GQH4V3XAQ5Z53AMQRDEC3C3UHTW7QR/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GLPXQQKURBQFM4XM6645VRPTOE2AWG33/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/K3GQH4V3XAQ5Z53AMQRDEC3C3UHTW7QR/
https://security.gentoo.org/glsa/201701-47
https://source.android.com/security/bulletin/2016-12-01.html
https://ubuntu.com/security/notices/USN-3048-1
https://www.tenable.com/security/tns-2016-18
http://www.debian.org/security/2016/dsa-3638
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
http://www.securityfocus.com/bid/92306
http://www.securitytracker.com/id/1036536
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.563059
http://www.ubuntu.com/usn/USN-3048-1
1362199 https://bugzilla.redhat.com/show_bug.cgi?id=1362199
cpe:2.3:a:haxx:libcurl:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:haxx:libcurl:*:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:24:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:24:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*
CVE-2016-5421 https://nvd.nist.gov/vuln/detail/CVE-2016-5421
USN-3048-1 https://usn.ubuntu.com/3048-1/
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://access.redhat.com/errata/RHSA-2018:3558
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-5421.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2016-5421
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2016-5421
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2016-5421
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://www.tenable.com/security/tns-2016-18
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Found at http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.82540
EPSS Score 0.00841
Published At Nov. 1, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.